Home / 11,310.80-15,592.40-7,943.52

Finding the Fourth Proportional to 11,310.80, 15,592.40 and 7,943.52

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Solution

The fourth proportional to 11,310.80, 15,592.40 and 7,943.52 is: 10,950.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,310.80 : 15,592.40 = 7,943.52 : x
  2. Step 2: Convert to fraction form
    11,310.80/15,592.40 = 7,943.52/x
  3. Step 3: Cross multiply
    11,310.80x = 15,592.40 × 7,943.52
  4. Step 4: Simplify right side
    11,310.80x = 123,858,541.25
  5. Step 5: Solve for x
    x = 123,858,541.25/11,310.80
  6. Step 6: Final answer
    x = 10,950.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.